Units of Measurement
The Units of Measurement for Slide2 models are specified on the General page of the Project Settings dialog. You may choose the Stress Units, Time Units and Permeability Units, as described below.
Stress Units
The Stress Units option allows you to choose either Metric or Imperial units. The selection of Stress Units determines the units of length, force, stress and unit weight, as summarized in the table below.
LENGTH | FORCE | STRESS | UNIT WEIGHT | |
Metric Units | metres | kN | kN / m2 | kN / m3 |
Imperial Units | feet | lbs | lb / ft2 | lb / ft3 |
All input dialogs will indicate the correct units to be entered, according to the units you have chosen.
Time Units
The Time Units are only applicable for finite element groundwater analysis, and determine the following:
- The Time Units used to define stages for a transient groundwater analysis.
- The Time Units used for time-dependent output quantities such as discharge velocity and flow rate through discharge sections. This is applicable for both steady-state and transient groundwater analysis.
You may choose from seconds, minutes, hours, days, months or years. Note: for computational purposes, 1 month is assumed to be 1/12 of a year or 365/12 = about 30.4 days.
If you are not performing finite element groundwater analysis, then the Time Units have no effect on input or output data.
Permeability Units
The Permeability Units are applicable if you are performing finite element groundwater seepage analysis, either steady-state or transient. The available Permeability Units depend on the selection of Stress Units (metric or imperial). The selected Permeability Units determine the units of permeability in the Define Hydraulic Properties dialog.
If you are not performing finite element groundwater analysis, then the Permeability Units have no effect on input or output data.